CN114056074A - Battery box bracket assembly - Google Patents

Battery box bracket assembly Download PDF

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Publication number
CN114056074A
CN114056074A CN202010774084.XA CN202010774084A CN114056074A CN 114056074 A CN114056074 A CN 114056074A CN 202010774084 A CN202010774084 A CN 202010774084A CN 114056074 A CN114056074 A CN 114056074A
Authority
CN
China
Prior art keywords
battery box
locking
battery
bracket assembly
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010774084.XA
Other languages
Chinese (zh)
Inventor
***
仇丹梁
冯毅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aulton New Energy Automotive Technology Co Ltd
Original Assignee
Aulton New Energy Automotive Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aulton New Energy Automotive Technology Co Ltd filed Critical Aulton New Energy Automotive Technology Co Ltd
Priority to CN202010774084.XA priority Critical patent/CN114056074A/en
Priority to PCT/CN2021/110499 priority patent/WO2022028454A1/en
Priority to US18/019,249 priority patent/US20230373284A1/en
Publication of CN114056074A publication Critical patent/CN114056074A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention discloses a battery box bracket assembly which is used for bearing and locking a battery box and comprises a bracket body and a back plate, wherein the bracket body is provided with a channel for the battery box to enter and exit the battery box bracket assembly along the Y direction; the one end of bracket body is located to the backplate, the backplate is used for this body coupling of bracket on electric vehicle, the backplate is equipped with car end electric connector and locked groove towards one side of battery box, car end electric connector is used for the electric battery end electric connector on the electricity connection battery box, the locked groove is used for locking the battery box, the locked groove includes the locking section, the locking section is used for along Y to the removal of restriction battery box, so that on the battery box was fixed in the bracket body, when the lock axle of battery box was located the locking section, car end electric connector was connected with battery end electric connector electricity. The battery box provided by the invention can be mounted to the locking section of the locking groove through the locking shaft. And meanwhile, the battery box is mounted and electrically connected with the electric automobile, so that the mounting efficiency of the battery box can be improved.

Description

Battery box bracket assembly
Technical Field
The invention relates to the field of electric automobiles, in particular to a battery box bracket assembly.
Background
The existing battery box mounting modes of the electric automobile are generally divided into a fixed mode and a replaceable mode. In the case of an electric vehicle with a replaceable battery pack, the battery pack is generally mounted on the electric vehicle by a bracket.
In the case of an electric vehicle with a replaceable battery pack, the battery pack is generally mounted on the electric vehicle by a bracket. In order to ensure the stability of the battery box, the battery box is usually fixed on the bracket by a locking device, and the fixation in three directions of X \ Y \ Z can be basically ensured (X: refers to the direction pointing to the head of the automobile in the horizontal plane, Y: refers to the direction vertical to X in the horizontal plane, and Z: refers to the height direction vertical to the horizontal plane). Specifically, the locking device comprises a lock shaft arranged on the battery box and a lock base arranged on the bracket. Generally, a lock shaft of the battery box firstly slides into a lock groove of the lock base from bottom to top along the Z direction and then is locked in place from the tail to the head along the Y direction, so that the lock shaft is locked relative to the lock groove, and the battery box is mounted on a bracket of an electric automobile.
In order to realize the circuit connection between the battery box and the electric vehicle, the battery box and the electric vehicle are generally connected by an electrical connection terminal. The electric connection joint comprises a battery end electric connector arranged on the battery box and a vehicle end electric connector arranged on the bracket. Generally, when the battery box moves from the tail of the vehicle to the head of the vehicle along the Y direction, the battery-end electrical connector on the battery box is inserted into the vehicle-end electrical connector on the bracket, so as to realize the circuit connection between the battery box and the electric vehicle.
In order to mount the battery box to the electric vehicle, it is generally necessary to ensure the accuracy of the following two mounting steps one after the other. Firstly, the position of the lock shaft on the battery box relative to the lock base on the bracket is ensured so as to ensure that the lock shaft can be inserted into the lock hole of the lock base. And secondly, the position of the battery end electric connector on the battery box relative to the vehicle end electric connector on the bracket is ensured so as to ensure that the battery end electric connector can be inserted into the vehicle end electric connector. So that a reliable mounting of the battery box can be achieved.
Therefore, the process of installing the battery box to the electric automobile is complex, the process is complicated, and the battery box is not convenient to replace.
Disclosure of Invention
The invention aims to overcome the defect that a battery box in the prior art can be mounted on an electric automobile only by ensuring the positions of a lock shaft and a battery end electric connector relative to the electric automobile in sequence, and provides a battery box bracket assembly.
The invention solves the technical problems through the following technical scheme:
a battery box bracket assembly for carrying and locking a battery box, the battery box bracket assembly comprising
The bracket body is provided with a channel for the battery box to enter and exit the battery box bracket assembly along the Y direction;
the backplate is located the one end of bracket body, the backplate be used for with this body coupling of bracket is on electric vehicle, the backplate orientation one side of battery box is equipped with car end electric connector and locked groove, car end electric connector is used for the electricity to be connected battery end electric connector on the battery box, the locked groove is used for the locking the battery box, the locked groove includes the locking section, the locking section is used for following Y to the restriction the removal of battery box, so that the battery box is fixed in on the bracket body, work as the lock axis of battery box is located during the locking section, car end electric connector with battery end electric connector electricity is connected.
In the scheme, a channel for the entry and exit of the battery box is arranged on the bracket body, and the bracket body is connected to the electric automobile by using the back plate; set up locked groove and car end electric connector including the locking section on the backplate, simultaneously, set up lock axle and battery end electric connector on the battery box to the battery box can be installed to the locking section of locked groove through the lock axle, realizes that the battery box is fixed for electric automobile's locking, can improve the stability and the reliability of battery box. When the battery box is locked and fixed, the vehicle-end electric connector is electrically connected with the battery-end electric connector, so that the battery box can be installed and connected with an electric automobile, and the installation efficiency of the battery box can be improved.
Preferably, the locking groove comprises an opening section, the opening section is connected with the locking section, and the locking section is positioned below the opening section.
In this scheme, through designing the locked groove to include the opening for the lock axle can pass in and out the opening more easily, through still including the locking section with the locked groove design, and utilize the fixed lock axle of locking section, make the lock axle can more stable the installation in the locking section. The bottom of locking section is less than the open-ended downside for the lock shaft can slide to the bottom of locking section under the effect of gravity from the opening, can improve the stability and the reliability of battery box.
Preferably, the locking groove further comprises a transition inclined surface, and the opening section is connected with the locking section through the transition inclined surface.
In this scheme, can make the lock axle slide to the bottom of locking section from the plane of opening smoothly through the transition inclined plane.
Preferably, the battery box bracket assembly further comprises a first positioning unit, and the first positioning unit is used for positioning the battery box in the process of moving towards the battery box bracket assembly along the Y direction.
In this scheme, can guarantee battery box relative to battery box bracket assembly position accuracy to improve controllability and the security in the battery box installation.
Preferably, the first positioning unit includes a detection point, the detection point is disposed on the back plate, a first detection element is disposed on the battery box, and the first detection element detects the detection point during the movement of the battery box to the battery bracket assembly along the Y direction, so as to realize the Y-direction positioning of the lock shaft of the battery box and the lock groove on the back plate;
and/or the detection point is arranged on the battery box, and the first detection element is arranged on the back plate.
In the scheme, the detection points are arranged and are arranged on one or two of the back plate or the battery box; meanwhile, the first detection element is correspondingly arranged on one or two of the back plate or the battery box, so that when the battery box moves along the Y direction to the battery bracket assembly, the phase positions of the lock shaft and the lock groove of the battery box in the Y direction can be accurately detected, and the controllability and the safety of the battery box in the installation process can be further improved.
Preferably, the battery box bracket assembly further includes a second positioning unit, and the second positioning unit is used for positioning the battery end electric connector and the vehicle end electric connector.
In this scheme, can guarantee the position accuracy of battery end electric connector for car end electric connector to improve controllability and the security in the battery box installation.
Preferably, the second positioning unit includes a positioning sleeve and a positioning post, the positioning sleeve is disposed on the battery end electrical connector, the positioning post is disposed on the vehicle end electrical connector, and when the lock shaft enters the opening section of the lock groove, the positioning post is inserted into the positioning sleeve.
In this scheme, through including position sleeve and reference column with the design of second positioning unit to set up it respectively on battery end electric connector and car end electric connector, and when the lock shaft got into the opening section of locked groove, the reference column inserted the position sleeve, thereby can realize the relative positioning of battery end electric connector for car end electric connector, and then can ensure the accuracy of battery end electric connector and car end electric connector to be connected.
Preferably, when the lock shaft enters the locking section along the lock groove, the positioning column positions the battery end electrical connector relative to the vehicle end electrical connector in the Y direction and/or the Z direction along the positioning sleeve, so that the battery end electrical connector is electrically connected with the vehicle end electrical connector.
In this scheme, the locking shaft gets into the locking section of locked groove to it is fixed to realize that the battery box is relative to the locking of bracket body. Meanwhile, the positioning columns and the positioning sleeves are inserted in place, so that the battery end electric connector is positioned relative to one or two of the Y direction and the Z direction of the vehicle end electric connector, and the battery end electric connector is electrically connected with the vehicle end electric connector. This scheme can realize simultaneously that the battery box is connected with electric automobile for the fixed of bracket body and battery box and electric, has improved battery box installation to electric automobile's efficiency and reliability effectively.
Preferably, the number of the locking grooves is at least two, and different locking grooves are arranged on two sides of the vehicle-end electric connector;
and/or the number of the locking grooves is at least two, and different locking grooves are arranged on the back plate at intervals along the Z direction.
In this scheme, can increase the area of locked groove effectively, with lock axle installation to the locked groove to can increase the area of contact between locked groove and the lock axle, improve the homogeneity of atress between locked groove and the lock axle, avoid the atress to concentrate, improve the reliability of battery box bracket assembly.
Preferably, the battery box bracket assembly further comprises a lock tongue, the lock tongue is rotatably arranged in the lock groove, and the lock tongue is used for preventing the lock shaft from moving.
In this scheme, utilize the spring bolt to prevent the lock shaft to remove, avoid the lock shaft to shift out the locked groove, can improve the stability of lock shaft to can improve the reliability and the stability of battery box.
Preferably, the lock slot extends along the X direction of the back plate, and the lock tongue is disposed at two ends of the lock slot extending along the X direction.
In this scheme, the spring bolt acts on the lock axle at the both ends of locked groove, can further improve the stability of lock axle, also can improve the reliability and the stability of battery box.
Preferably, the battery box bracket assembly further includes a ball bearing sleeve, and the ball bearing sleeve is rotatably sleeved on the lock shaft.
In this scheme, can reduce the frictional force when the lock axle slides in the locked groove, improve the stability and the reliability of battery box.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the bracket body is provided with the inlet and outlet channel of the industrial battery box, and the bracket body is connected to the electric automobile by the back plate; set up locked groove and car end electric connector including the locking section on the backplate, simultaneously, set up lock axle and battery end electric connector on the battery box to the battery box can be installed to the locking section of locked groove through the lock axle, realizes that the battery box is fixed for electric automobile's locking, can improve the stability and the reliability of battery box. When the battery box is locked and fixed, the vehicle-end electric connector is electrically connected with the battery-end electric connector, so that the battery box can be installed and connected with an electric automobile, and the installation efficiency of the battery box can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a battery box bracket assembly according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural view of the bracket body in fig. 1.
Fig. 3 is a schematic top view of the bracket body in fig. 2.
Fig. 4 is a structural schematic view of a cross section of the bracket body in fig. 2.
Fig. 5 is a schematic structural view of the battery box in fig. 1.
Fig. 6 is a structural view showing a cross section of the battery box bracket assembly of fig. 1 when the latch shaft reaches the open section.
Fig. 7 is a structural view showing a cross section of the battery box bracket assembly when the latch shaft enters the open section of fig. 1.
Fig. 8 is a schematic structural view of a cross section of the battery box bracket assembly of fig. 1 when the lock shaft enters the transition slope.
Fig. 9 is a schematic cross-sectional view of the battery case bracket assembly of fig. 1 with the lock shaft entering the locking section.
Description of reference numerals:
battery box bracket assembly 100
Bracket body 11
Back plate 12
Locking groove 121
Opening section 122
Locking section 123
Abutting part 124
Transition bevel 125
Vehicle end electric connector 13
Positioning post 131
Bolt 14
Battery box 200
Lock shaft 21
Battery end electrical connector 22
Locating sleeve 221
Box body 23
Detailed Description
The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1-5, the present embodiment is a battery box bracket assembly 100 for carrying and locking a battery box 200, the battery box bracket assembly 100 includes a bracket body 11 and a back plate 12, the bracket body 11 has a passage for the battery box 200 to enter and exit the battery box bracket assembly 100 along a Y direction; the back plate 12 is arranged at one end of the bracket body 11, the back plate 12 is used for connecting the bracket body 11 to an electric vehicle, a vehicle end electric connector 13 and a lock groove 121 are arranged on one side of the back plate 12 facing the battery box 200, the vehicle end electric connector 13 is used for electrically connecting a battery end electric connector 22 on the battery box 200, the lock groove 121 is used for locking the battery box 200, the lock groove 121 comprises a lock section 123, the lock section 123 is used for limiting the movement of the battery box 200 along the Y direction, so that the battery box 200 is fixed on the bracket body 11, and when the lock shaft 21 of the battery box 200 is located at the lock section 123, the vehicle end electric connector 13 is electrically connected with the battery end electric connector 22. A channel for the battery box 200 to enter and exit is arranged on the bracket body 11, and the bracket body 11 is connected to the electric automobile by using a back plate 12; set up locking groove 121 and car end electric connector 13 including locking section 123 on backplate 12, simultaneously, set up lock axle 21 and battery end electric connector 22 on the battery box 200 to battery box 200 can be installed to locking section 123 of locking groove 121 through lock axle 21, realizes that battery box 200 is fixed for electric automobile's locking, can improve battery box 200's stability and reliability. When battery box 200 is locked and fixed, vehicle-end electric connector 13 is electrically connected to battery-end electric connector 22, so that battery box 200 can be mounted and battery box 200 can be connected to the electric vehicle at the same time, and the efficiency of mounting battery box 200 can be improved.
As shown in fig. 4, the locking groove 121 includes an opening section 122, the opening section 122 is connected to a locking section 123, and the locking section 123 is located below the opening section 122. The lock shaft 21 can be more easily moved in and out of the opening section 122 by designing the lock groove 121 to include the opening section 122, and the lock shaft 21 can be more stably mounted to the locking section 123 by designing the lock groove 121 to further include the locking section 123 and fixing the lock shaft 21 using the locking section 123. The bottom of the locking section 123 is lower than the lower side surface of the opening section 122, so that the locking shaft 21 can slide to the bottom of the locking section 123 from the opening section 122 under the action of gravity, and the stability and reliability of the battery box 200 can be improved.
In fig. 4, the locking groove 121 further includes a transition slope 125, and the opening section 122 and the locking section 123 are connected by the transition slope 125. The transition slope 125 enables the lock shaft 21 to slide smoothly from the plane of the opening section 122 to the bottom of the locking section 123.
As an embodiment, the opening section 122 may be a plane, and the inner side surface of the bottom of the locking section 123 is fitted to the outer circumferential surface of the lock shaft 21. The lock shaft 21 may be a cylinder, and accordingly, the cross section of the bottom may be an arc surface, and the arc surface is adapted to the outer peripheral surface of the cylinder. A transition inclined plane 125 can be further disposed between the plane of the opening section 122 and the arc surface of the bottom, and the transition inclined plane 125 can enable the lock shaft 21 to smoothly slide from the plane of the opening section 122 to the bottom of the locking section 123. The transition slope 125 may be an inclined plane, and the included angle between the inclined plane and the vertical plane may be 45 °.
As a preferred embodiment, the battery box tray assembly 100 further includes a first positioning unit for positioning the battery box 200 during movement in the Y direction toward the battery box tray assembly 100. The position accuracy of the battery box 200 with respect to the battery box bracket assembly 100 can be ensured, thereby improving the controllability and safety in the installation process of the battery box 200.
Specifically, the first positioning unit includes a detection point, the detection point is disposed on the back plate 12, the battery box 200 is provided with a first detection element, and the first detection element detects the detection point in the moving process of the battery box 200 along the Y direction to the battery box bracket assembly 100, so as to realize the Y direction positioning of the lock shaft 21 of the battery box 200 and the lock groove 121 on the back plate 12; accordingly, the detection points may be provided on the battery box 200 at the same time or separately, and the first detection element is provided on the back plate 12. By setting the detection point, and setting the detection point at one or both of the backboard 12 or the battery box 200; meanwhile, the first detecting element is correspondingly disposed on one or both of the back plate 12 and the battery box 200, so that the phase positions of the lock shaft 21 and the lock groove 121 of the battery box 200 in the Y direction can be accurately detected when the battery box 200 moves along the Y direction to the battery bracket assembly, and the controllability and safety of the battery box 200 during the installation process can be further improved. As an embodiment, the first positioning unit may include a laser ranging sensor or an infrared ranging sensor.
In a preferred embodiment, the battery box bracket assembly 100 further includes a second positioning unit for positioning the battery-end electrical connector 22 with the vehicle-end electrical connector 13. The positional accuracy of the battery-end electrical connector 22 with respect to the vehicle-end electrical connector 13 can be ensured, thereby improving the controllability and safety in the installation process of the battery box 200.
As shown in fig. 2, 3 and 5, the second positioning unit includes a positioning sleeve 221 and a positioning post 131, the positioning sleeve 221 is disposed on the battery-end electrical connector 22, the positioning post 131 is disposed on the vehicle-end electrical connector 13, and when the lock shaft 21 enters the opening section 122 of the lock slot 121, the positioning post 131 is inserted into the positioning sleeve 221. The second positioning unit is designed to include the positioning sleeve 221 and the positioning post 131, and is respectively disposed on the battery-end electrical connector 22 and the vehicle-end electrical connector 13, and when the locking shaft 21 enters the opening section 122 of the locking groove 121, the positioning post 131 is inserted into the positioning sleeve 221, so that the battery-end electrical connector 22 can be relatively positioned with respect to the vehicle-end electrical connector 13, and accurate connection between the battery-end electrical connector 22 and the vehicle-end electrical connector 13 can be ensured.
In order to improve the efficiency and reliability of the installation of the battery box 200, when the locking shaft 21 enters the locking section 123 along the locking groove 121, the positioning column 131 positions the battery-end electrical connector 22 relative to one or both of the Y direction and the Z direction of the vehicle-end electrical connector 13 along the positioning sleeve 221, so as to electrically connect the battery-end electrical connector 22 and the vehicle-end electrical connector 13. The lock shaft 21 enters the lock section 123 of the lock groove 121, thereby achieving the locked fixation of the battery box 200 with respect to the bracket body 11. Meanwhile, the positioning column 131 and the positioning sleeve 221 are inserted in place, so that the battery-end electrical connector 22 is positioned relative to one or both of the Y direction and the Z direction of the vehicle-end electrical connector 13, and the battery-end electrical connector 22 is electrically connected with the vehicle-end electrical connector 13. The present embodiment can simultaneously realize the fixation of the battery box 200 with respect to the bracket body 11 and the electrical connection of the battery box 200 with the electric vehicle, and effectively improve the efficiency and reliability of the installation of the battery box 200 to the electric vehicle.
As a specific embodiment, as shown in fig. 6 to 9, a process of mounting the battery case 200 to the back plate 12 is shown. The housing of the vehicle end electrical connector 13 is shown fixedly attached to the back panel 12. The vehicle-end electrical connector 13 is provided with a positioning post 131, and the positioning post 131 is connected to the housing of the vehicle-end electrical connector 13 in a floating manner, so that the positioning post 131 can move in the direction X, Y, Z relative to the housing of the vehicle-end electrical connector 13. The end of the positioning post 131 also has a guiding inclined surface that can guide the positioning post 131 to be inserted into the positioning sleeve 221 on the battery-end electrical connector 22. For ease of illustration, the positioning posts 131 and sleeves 221 are shown in the B-B sectional view, and the other components of the vehicle-end electrical connector 13 and the battery-end electrical connector 22 are not shown in detail.
As shown in the sectional view a-a in fig. 6, the lock shaft 21 of the battery box 200 is about to reach the opening section 122 of the lock groove 121, and at this time, as shown in the sectional view B-B in fig. 6, the positioning post 131 is not inserted into the positioning sleeve 221. As the battery box 200 approaches the back plate 12 along the Y direction, as shown in the section a-a in fig. 7, when the lock shaft 21 enters the opening section 122 of the lock slot 121, as shown in the section B-B in fig. 7, the positioning column 131 is inserted into the positioning sleeve 221, and at this time, the centers of the positioning column 131 and the positioning sleeve 221 do not coincide with each other, and there is an angular deviation therebetween, so as to position the battery-end electrical connector 22 relative to the vehicle-end electrical connector 13. The battery box 200 continues to approach the back plate 12 along the Y-direction, as shown in the section a-a of fig. 8, the lock shaft 21 slides into the transition slope 125 from the opening section 122, at this time, as shown in the section B-B of fig. 8, the positioning column 131 is further inserted into the positioning sleeve 221, and since the positioning column 131 is floatingly connected to the housing of the vehicle-end electrical connector 13, the positioning column 131 can adapt to the angular deviation from the positioning sleeve 221, so that the positioning column 131 can continue to be inserted into the positioning sleeve 221. The battery box 200 continues to slide along the transition slope 125 and slides to the locking section 123, as shown in the section a-a in fig. 9, the locking shaft 21 reaches the locking section 123, and the locking fixation of the locking shaft 21 relative to the locking groove 121 is realized. At this time, as shown in the section B-B in fig. 9, the positioning column 131 is completely inserted into the positioning sleeve 221, and at this time, the centers of the positioning column 131 and the positioning sleeve 221 are overlapped, and at the same time, the electrical connection between the battery-end electrical connector 22 and the vehicle-end electrical connector 13 is realized.
In the present embodiment, on one hand, coarse positioning of the lock shaft 21 and the lock groove 121, and coarse positioning of the positioning sleeve 221 and the positioning column 131 in the Y direction are achieved by the first positioning unit, when the lock shaft 21 reaches the opening section 122 of the lock groove 121, there is a certain angular deviation between the positioning column 131 and the center of the positioning sleeve 221, and in the process that the lock shaft 21 enters the lock groove 121, the guiding inclined plane at the end of the positioning column 131 guides the positioning sleeve 221 to continue to insert in the Y direction, meanwhile, because the positioning column 131 can float in the X, Y, Z direction, the positioning column 131 can self-adaptively realize alignment insertion with the positioning sleeve 221, when the lock shaft 21 reaches the locking section 123 in the lock groove 121, the centers of the positioning column 131 and the positioning sleeve 221 coincide, and positioning connection in the X, Y, Z direction of the vehicle-end electrical connector 13 and the battery-end electrical connector 22 is achieved.
As an embodiment, the number of the locking grooves 121 is at least two, and different locking grooves 121 are disposed on two sides of the vehicle-end electrical connector 13; the embodiment can also simultaneously or individually design the number of the locking slots 121 to be at least two, and different locking slots 121 are arranged on the back plate 12 at intervals along the Z-direction. This embodiment can increase the area of locked groove 121 effectively, installs lock axle 21 to locked groove 121 in to can increase the area of contact between locked groove 121 and the lock axle 21, improve the homogeneity of atress between locked groove 121 and the lock axle 21, avoid the atress to concentrate, improve battery box bracket assembly 100's reliability.
As shown in fig. 2 and 3, the battery box bracket assembly 100 further includes a locking tongue 14, the locking tongue 14 is rotatably disposed in the locking groove 121, and the locking tongue 14 is used for preventing the lock shaft 21 from moving. The lock bolt 14 is used for preventing the lock shaft 21 from moving, the lock shaft 21 is prevented from moving out of the lock groove 121, the stability of the lock shaft 21 can be improved, and therefore the reliability and the stability of the battery box 200 can be improved.
As shown in fig. 2 and 3, the locking groove 121 extends along the X direction of the back plate 12, and the locking tongue 14 is disposed at two ends of the locking groove 121 extending along the X direction. The latch 14 acts on the lock shaft 21 at both ends of the lock groove 121, so that the stability of the lock shaft 21 can be further improved, and the reliability and stability of the battery box 200 can also be improved.
In order to reduce the friction force, the battery box bracket assembly 100 further includes a ball bushing rotatably sleeved on the lock shaft 21. The frictional force generated when the lock shaft 21 slides into the lock groove 121 can be reduced, and the stability and reliability of the battery case 200 can be improved.
As shown in fig. 2 to 4, the back plate 12 has an abutting portion 124, the abutting portion 124 protrudes from a side surface of the back plate 12, and the abutting portion 124 is used for abutting against a rear wall of the battery box 200. The protruding abutting portion 124 abuts against the battery case 200, and the lock shaft 21 of the battery case 200 is prevented from rotating relative to the lock groove 121, thereby improving the stability and reliability of the battery case 200.
In fig. 4, the surface of the abutting portion 124 that contacts the battery case 200 is a flat surface. The contact area between the battery box 200 and the abutting part 124 can be effectively increased, the stress uniformity between the battery box 200 and the abutting part 124 is improved, and the stress concentration is avoided.
In other embodiments, the bracket body 11 may further include a bottom cross member for supporting the battery box 200. The battery box 200 is supported by the bottom cross beam, so that the stability and reliability of the battery box 200 can be further improved. The bottom cross beam can be further provided with a roller sleeve, the roller sleeve can rotate, the battery box 200 is arranged on the upper side face of the roller sleeve, when the battery box 200 enters the bracket body 11, the ball sleeve rotates under the driving of the battery box 200, and the friction force of the battery box 200 sliding into the bracket body 11 can be reduced.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (12)

1. A battery box bracket assembly for carrying and locking a battery box, the battery box bracket assembly comprising
The bracket body is provided with a channel for the battery box to enter and exit the battery box bracket assembly along the Y direction;
the backplate is located the one end of bracket body, the backplate be used for with this body coupling of bracket is on electric vehicle, the backplate orientation one side of battery box is equipped with car end electric connector and locked groove, car end electric connector is used for the electricity to be connected battery end electric connector on the battery box, the locked groove is used for the locking the battery box, the locked groove includes the locking section, the locking section is used for following Y to the restriction the removal of battery box, so that the battery box is fixed in on the bracket body, work as the lock axis of battery box is located during the locking section, car end electric connector with battery end electric connector electricity is connected.
2. The battery box bracket assembly of claim 1, wherein the locking slot includes an open section connected to the locking section, the locking section being located below the open section.
3. The battery box bracket assembly of claim 2, wherein the locking groove further comprises a transition slope, and the opening section and the locking section are connected by the transition slope.
4. The battery box tray assembly of claim 1, further comprising a first positioning unit for positioning the battery box during movement of the battery box in the Y-direction toward the battery box tray assembly.
5. The battery box bracket assembly of claim 4, wherein the first positioning unit comprises a detection point, the detection point is disposed on the back plate, a first detection element is disposed on the battery box, and the first detection element detects the detection point during the movement of the battery box to the battery bracket assembly along the Y direction, so as to realize the Y-direction positioning of the lock shaft of the battery box and the lock groove on the back plate;
and/or the detection point is arranged on the battery box, and the first detection element is arranged on the back plate.
6. The battery box bracket assembly of claim 1, further comprising a second positioning unit for positioning the battery end electrical connector with the vehicle end electrical connector.
7. The battery box bracket assembly of claim 6, wherein the second positioning unit comprises a positioning sleeve and a positioning post, the positioning sleeve is disposed on the battery end electrical connector, the positioning post is disposed on the vehicle end electrical connector, and the positioning post is inserted into the positioning sleeve when the lock shaft enters the opening section of the lock slot.
8. The battery box bracket assembly of claim 7 wherein said locating posts locate said battery end electrical connector along said locating sleeve with respect to said vehicle end electrical connector in the Y-direction and/or Z-direction when said locking shaft enters said locking section along said locking slot to effect electrical connection between said battery end electrical connector and said vehicle end electrical connector.
9. The battery box bracket assembly of claim 1 wherein said locking slots are at least two in number, different ones of said locking slots being disposed on opposite sides of said vehicle end electrical connector;
and/or the number of the locking grooves is at least two, and different locking grooves are arranged on the back plate at intervals along the Z direction.
10. The battery box bracket assembly of claim 1 further comprising a latch tab rotatably disposed within the lock slot, the latch tab for preventing movement of the lock shaft.
11. The battery box bracket assembly of claim 10, wherein the locking groove extends along the X-direction of the back plate, and the locking tongue is disposed at both ends of the locking groove extending along the X-direction.
12. The battery box bracket assembly of claim 1 further comprising a ball bushing rotatably disposed about the lock shaft.
CN202010774084.XA 2020-08-04 2020-08-04 Battery box bracket assembly Pending CN114056074A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202010774084.XA CN114056074A (en) 2020-08-04 2020-08-04 Battery box bracket assembly
PCT/CN2021/110499 WO2022028454A1 (en) 2020-08-04 2021-08-04 Battery box support frame, battery box, and electric vehicle
US18/019,249 US20230373284A1 (en) 2020-08-04 2021-08-04 Battery box support frame, battery box, and electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010774084.XA CN114056074A (en) 2020-08-04 2020-08-04 Battery box bracket assembly

Publications (1)

Publication Number Publication Date
CN114056074A true CN114056074A (en) 2022-02-18

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Country Link
CN (1) CN114056074A (en)

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CN106427514A (en) * 2016-11-21 2017-02-22 上海电巴新能源科技有限公司 Locking device and electric automobile
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CN216033705U (en) * 2020-08-04 2022-03-15 奥动新能源汽车科技有限公司 Battery box bracket assembly

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